TY  - BOOK
TI  - Telephone pratishtapanam
U1  - 621.385 
PY  - 1973///
CY  - Thiruvananthapuram
PB  - Kerala Bhasha Institute
KW  - Applied PhysicsWire TelephonyINTRODUCTION, SIMPLE HARMONIC MOTION, FREE AND FORCED VIBRATIONS,
ER  -